Tool-holder for riveters.



(Application med out. a1, 189s.)

Unirse Stearns- Pacrsnr @ritroso AROBERT S. MOORE, OF OAKLAND, CALIFORNIA.

TOOLuHOLDR" FOR RWETERS.

- l 3 'i f l SPECIFICATION forming part of Letters Patent No. 641,317, dated January 16, 1900.

l l Application filed October S1, 1898.' Serial No. 695,118. (No model.)

To all whom #may concern):

Beit known that LROBERT S. Mo.oRE,a citizen of the United States, residing at Oakland,v in the county of Alameda and State of California, have invented certain new and usenl Improvements in Tool-Holders for' Riveters; and I do hereby declare that the following is a full, clear, and exact description thereof.

The present invention relates to certain new Vand useful improvements upon the alining and centering mechanism disclosed in theapplication, Serial No. 684,292, filed by me in the United States Patent Office on the 23d day ofJune, 1898, for Letters Patent upon a certain holding invention consists in the arrangement of parts and details of construction as will be hereinafter fully .set forth in the drawings and described an'd pointed out in the specification.

In my aforesaid application, Serial No. 684,292, I have shown and described a series of hand-manipulated devices for alining the holding-frame to the pipe-sections and have likewise shown and described a plug working through a connecting-piece for centering the holding-frame to -the work to be riveted. This manner of alining causes considerable delay in adjusting the frame to the pipe-sections and releasing the same after the riveting of the sectionshas been performed, while by the means described in said pending application for centering the frame to the rivetvholes the operator is required, after the holding-frame has been removed, to close the rivet-holes previously occupied by the centering-plug by hand rivet-work. This Idesire to avoid by so arranging the centering feature that the centering-plug may be removed and its rivet-hole closed during the circumferential movement or travel of the riveting-tool. j

Practical operation or use of the holdingframe described in ,my aforesaid application has demonstrated the fact that inasmuch as the sections to be riveted are of approximate diameter it is not necessary to-adjust or aline that portion of the holding-frame which surrounds or embraces the lower half of the pipe-sections nor to disturb said adjustments during the'removal of the holding-frame from section to section of the work to be riveted.

device for riveters; and th` Figure l is a cross-sectional view of the pipe in front elevation, showing the holding-frame in position and the arrangement of the alining and the centering devices for the frame. Fig. 2 is a side view in elevation ot a portion of the pipe-line or pipe-sections,"disclosing the application of the holding-frame thereto. Fig. 3 is a detail cross-sectional view of the' holding-frame to better illustrate the alining mechanism,

In the drawings the letters A A' are used to designate the pipe-sections to be riveted or joined together, and B B circular `plates or said view showing a portio'not` the pipe-sectionSLand.Fighe is.' ayiewsimilar to Fig. 3,'illustrating4the centering device.

rings which encompass thepipesections and constitute the holding-frame, said frame being composed of distinct sections which are'y united or joined together by means of bolts a,

Fig. 1. BY Preference the annular or holding frame is formed of channel-iron, and between the rings or plates composing the frame is tted to move the slide-tool-holding block C, which block is'formed with side grooves b', so that the side edges thereof embrace the upper and lower faces of the rings or plates B B', Fig. 2. This slide-block is provided with a vertical central opening b3, within which is itted the cylinder O, carrying the pneumatic hammer or riveter O2. In order to permit free circumferential movement of the slideblock carrying the riveter, the same is connected by tie-rods D D to the sleeves d d', which sleeves in turn are connected to sleeve d2 by tie-rods D2 D3. These sleeves carry, respectively, the rollers E E3 and larger rolls E, which larger rolls serve as a counterpoise or counterweight for the riveter.

The arrangement of the foregoing parts and the operation of each being fully setforth in my aforesaid application, Serial No. 684,292, to which reference is hereby made, vcalls for no specific description in the present application. n

Each section of the holding-frame, as described in my'aforesaidapplicatiom when the frame is adjusted to the pipe-sections is'fastened or held together by means of the lock.'

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2 n eener? `or cross-bars B2, which bars are connectedfby hinged joint a' to one ring of the frame and secured tothe other ring of the frame, when thrown over, by means of: the clip a2, hinged to said ring, which clip fits over the free end "t the cross-bar B2, Fig. 2. Each cross-bar is 1 med with a depending lug b, which enthe inner face of one of the rings of the annular frame, so as to hold the frame-rings a given distance apart.

secure -proper alinement or adjust the holdingframe to the uneven or broken surface of 'the pipe-sections, each section of the lioldingrame is formed with a downwardlyi5 eztendingbracket or support l 2 3 4:. Through Y the lower two brackets or supports 2 3 work 'the screwthreaded bolts 5, which carry at their lower end a toot 6. This foot rests upon the pipe-section of the respective ring, and either ring is raised or lowered to secure proper adjustment by turning the hand-wheel '7, attached 'to the upper end of the screw-bolts inasmuch as the pipe-sections to be riveted are approximately of uniform diameter the adjustment given to'the lower half or portion et the holding-frame embracing or encompassing the under portion of the pipe-sections need not be varied materiallythroughout the lineof work. For this reason l prefer to em ploy hand-manipulated adjusting devices for this portion of the holding-frame, which adjusting means is the same as that set forthin my application Serial No. 684,292, before referr-ed to. inasmuch as the holding-frame advanced longitudinally as the Work of lineriveting progresses it is obvious that the upper portion of the holding-frame must be released trom the pipe-sections to permit such movement, and when the adjoining section of pipe to be riveted is reached. the sainernnst be again `united to the lower section so as to Y embrace the pipe-sections and the alining devices for the upper sections of the holding- '.trame re'adjusted to properly aline the frame. To release the parts, it is only necessary to remove. the connectingbolts a and release the lock-bars B2. .l

To facilitate the work of alining the upper sectionso the holding-frame, l dispense with the hand adjusting devices andin lieu thereof attach to each ring of the holding-frame the aircylinders 8, virn'mhin. .which.work the pistons 9. Tliese pistons 9 work through the brackets l to 4 and at their lowerends carry the foot l0,\vhich bears upon thepipe-sections of the respective rings of the holding-frame, The cylinders 8 are connected by the air-'pipe Y 11, which receives air from an air-supply pipe leading Jfrom an air-compressor (not shown) through the ordinary four-way cock 12. As

this cool; is turned to open the air-supply the air rushes through the pipe 11 into the aircylinders to torce the foot l0 against the pipe-sections, so as to adjust or properly aline the rings of the holding-rrznne.A Whenit is desired to rejthat the holdingfra1ne has to be removed from the pipe-sections and I vwith the pin orv stud f 8 and moves the pistons 9 outward lease the adjusting or alining devices forthe holdin g-frame, it is onlyr necessary that the operator turn the cock so as to cut ofithe in' let or admission of air from the compressor, the cutting off of which supply opens the out* let of the fourway cock and permits the es cape of air from within-the air-cylinders in,

order to release the adjusting or alining devices.

lt is obvious thatl the lower adjusting or alining devices may, if/so desired, be constructed and operated/in thesameinanner as the upper ones, although I do not deem it so necessary, as practical working has proven may be quickly and easily adjusted in the manner set forth, and illustrated in the drawings. y

he holding-frame as adjusted to the worl; to be riveted is centered thereto by means of screw-plugs g, which plugs have their lower ends tapered, so as to lit within the rivet-holes of the sections to be rive-ted, thus acting 'as blank-rivets. In the drawingsA have'il'lustrated three of such centering-plugs, although a greater number may be employed, if so de sired. Each centering-plug works through a screw-threaded central'opening g', formed in the swinging tie-plates g2. 4These tie-plates are pivoted at one end to the studs or pins g3, attached to and depending from one of the rings of the holding-frame-say B-and the opposite end of each tie-plate is provided with a semicircular opening or cut-away portion f, which when the tie-plate is swung over embraces or ts over the stud or pin j", attached to anddepending from the ring B of the holding-frame, Fig. 4. The screw-threaded centering-plug is raised and lowered by turning of the hand-wheel f2, secured to the urpper end thereof. p

As during the operation of riveting .the

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riveter or toolholder approaches either of the centering-plugs the operator turns the hand-wheel so as to raise the said plug from within the rivet-holes of the pipe-sections and then releases the tie-plate from the pin or:

stud'f and throws the same outward or away from the ring B' in order to give clearance for err 5 free circumferential movement of the rivetmY which as carried around drives. or-

ing-tool,

heads a rivet in the holes previously occupied by the centeringeplug. The tie-plate may thenbe swung over into position and locked in order to unite and give rigidity to the rings composing the holding-frame and to prevent spreading thereof.

These swinging plates not only answer as a support for the centering-plugs, but likewise as tie-plates for the rings of the-tool-holding frame.

Having thus described my invention,what I claim as new, and desire to secure protection in by Letters Patent, is l. 'In a tool-holder for riveters, the combination with the' securing-frame, of a plurality of powenoperated devices for adjusting 'or alining the frame to the work to be riveted,

nation with a securing-frame and a movable riveter-support thereon, of a swinging plate and a centering-plug carried thereby and adapted to be swung int'o and out of the path` of a riveter carried by said support. 3. In a tool-holder for riveters, the combination with a two-part securing-frame,l and a riveter-carriage mounted to travel thereon and support a riveter'between said frame parts, of swinging tie-plates, and centeringplugs carried by said tie-plates.

4. In a tool-holder forriveters, the combination with the securing-frame, of the poweroperated aliniug devices, a singlemeans for controlling said alining devices and of means for centering the frame to the work to be riveted. l 5. In a tool-holder for riveters, the combination with the securing-frame composed of two circular plates or rings, of air-cylinders secured to and carried by each plate or ring, connection between said cylinders and 'a source of air-supply, and'of a piston working in each cylinder and actuated by the' pressure of air therein, said piston terminating in a foot or enlargement which bears against the pipe-sections as the piston is forced outward.

' 6. In a tooLholder for riveters, the combination with the securing-frame, of a series of pneumatic-actuated devices for adjusting or alining the frame to the work to be riveted,

and a single means for controlling said alin-v ing devices.

7. In a tool-holder for riveters, the combination with the two-part securing-frame, and a riveter-carriage mounted to travel thereon and support a rivet-er between said frame parts, of a series of pneumatic-actuated devices for adjusting or alining the frame, a series' of swinging tie-plates, and of the vertically-adjustable 4centering devices carried by the swinging tie-plates.

-8. In a tool-holder for rivcters, the combination wit-n the securing-frame, of a' series of hand-actuated adjusting or aliniug devices carried thereby, and of a series of power-operated adjusting or alining devices likewise secured to and carried by the frame, and a single means for controlling said power-operated alining devices.

9. In a tool-holder for riveters, -the combination with the securing-frame, of a. series of vertically-movable alining devices for the frame, air-actuated mechanism connected with and'for operating certain of said alinin g devices, a single means forcontrolling said air-actuated mechanism and of means for centering the frame to the work to be riveted.`

10. In a tool-holder for riveters, the combi nationwith the securing-frame composed of two circular plates or rings, and a riveter-carriage mounted to travel thereon andsupport a riveter between said plates, of a series of tieplates hinged or pivoted to one of the plates or rings and adapted ,to lck with the-opposite .plate or ring of the fra-me, and of a centering device carried by each tie-plate.

11. In a tool-holder for riveters, thecombination with a securing-frame 'adapted to sur round the work and a normally-fixed aliniug device or devices thereon, of a plurality of pneumaticallyoperated alining devices op-` posed to the latter, a supply-pipe therefor, and a single device for controlling all said pneumatic alining devices, substantially as described.

, In testimony whereof I Iaiiix my signature, in presence of two witnesses, this 25th day of October, 1898.

ROBERT S. MOORE.

-Witnesses:

N. A. AcKnR, LEE D. CRAIIG. 

